JP2000045563A - Vibration-damping wall panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To damp vibrations effectively by conducting the expansion-contraction operation of a damper even in small vibrations. SOLUTION: The vibration-damping wall panel 10 has an upper frame 23 and a lower frame 24 and a pair of hydraulic dampers 21, 22 are installed into a space 16 between the upper frame 23 and the lower frame 24. In the vibration-damping wall panel 10 the upper frame 23 fixed onto a girder 15, the lower frame 24 fastened onto a sill 18 and side plates 25, 26 supporting the upper frame 23 are unified. The side plates 25, 26 have flexibility easier to be deformed in the direction of vibrations than other sections of the vibration- damping wall panel 10. Accordingly, when vibrations are input in the vibration- damping wall panel 10, the side plates 25, 26 are deformed and relative displacement is generated between the upper frame 23 and the lower frame 24, and a vibration-damping effect by the damping force of the hydraulic dampers 21, 22 is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damping wall panel, and more particularly to a damping wall panel configured to absorb vibration energy of a structure.

[0002]

2. Description of the Related Art As a means for improving the seismic resistance of structures such as buildings and houses, a vibration damping structure has been developed in which a hydraulic damper is attached to a brace which is mounted at a diagonal position of a frame and is arranged inside a wall. Is being promoted. This vibration damping structure has a structure in which a hydraulic damper absorbs vibration energy of an earthquake that attempts to plastically deform the frame between columns, beams, or the like, and dampens the frame of the structure.

As a conventional brace damper used for such a vibration damping structure, for example, there is a structure disclosed in Japanese Utility Model Laid-Open Publication No. Hei 7-23108. In this publication, a hydraulic damper is mounted as a brace, and a cylinder end of the hydraulic damper is connected to a corner of a frame, and an end of a piston rod connected to a piston that reciprocates in the cylinder. Are connected to other corners formed at diagonal positions of the skeleton. Then, when the vibration energy due to the earthquake is transmitted to the structure of the structure, a stress is applied to the structure so as to deform the rectangular structure into a parallelogram. The vibration energy at that time is absorbed by the hydraulic damper. As a result, the structure is prevented from being deformed by the earthquake.

[0004]

In the brace damper configured as described above, when relatively large vibration energy is applied, the piston of the hydraulic damper slides in the cylinder to generate a damping force. It can be configured. However, the conventional vibration-damping wall panel has a problem that the frame supporting the wall has high rigidity and restrains the interlayer displacement of the building, so that a sufficient vibration-damping effect cannot be obtained.

When a relatively small amount of vibration energy is applied, the piston of the hydraulic damper does not slide in the cylinder due to the static friction of the brace damper, and there is a possibility that no damping force is generated. Therefore, when relatively small-amplitude vibration propagates through the structure, relative displacement does not occur at both ends of the hydraulic damper, so the vibration cannot be absorbed by the hydraulic damper, and the small-amplitude vibration can be sufficiently damped. There is also a problem that they cannot.

Therefore, an object of the present invention is to provide a vibration-damping wall panel which solves the above-mentioned problems.

[0007]

In order to solve the above problems, the present invention has the following features. Claim 1
The described invention comprises an upper frame fixed to a beam or a column of the structure,
A lower frame disposed below the upper frame via a space and fixed to a beam or a pillar of the structure; and a space formed between the upper frame and the lower frame, one end of which is provided on the upper frame. A damper connected to the frame, the other end of which is connected to the lower frame, and a support provided between the upper frame and the lower frame and more flexible than other members. It is.

Therefore, according to the first aspect of the present invention, the damper is provided in the space formed between the upper frame and the lower frame, and the pillar having more flexibility than the other members is provided between the upper frame and the lower frame. Since it is provided between the upper frame and the lower frame, the rigidity between the upper frame and the lower frame is reduced, so that the constraint between the upper frame and the lower frame can be relaxed, and the upper frame and the lower frame generated by vibration transmitted from the outside. The damper generates a damping force according to the relative displacement between the vibration and the vibration energy. Therefore, even small vibrations can be effectively damped.

According to a second aspect of the present invention, there is provided the vibration-damping wall panel according to the first aspect, wherein the support has flexibility by a member having a cross-sectional structure having a lower rigidity than other members. It is characterized by being formed as follows. Therefore, according to the second aspect of the present invention, since the pillar has a cross-sectional structure with lower rigidity than other members and is formed to have flexibility, rigidity between the upper frame and the lower frame is reduced. Thus, the constraint between the upper frame and the lower frame can be relaxed, and the same operation and effect as in the first aspect can be obtained.

According to a third aspect of the present invention, there is provided the vibration-damping wall panel according to the first aspect, wherein the column is formed of a material having lower rigidity than other members so as to have flexibility. It is characterized by the following. Therefore, according to the third aspect of the present invention, since the column is formed of a material having lower rigidity than other members, the column is formed to have flexibility.
The rigidity between the upper frame and the lower frame is reduced, so that the restraint between the upper frame and the lower frame can be eased, and the same operation and effect as in the first aspect can be obtained.

According to a fourth aspect of the present invention, there is provided the vibration-damping wall panel according to the first aspect, wherein the support comprises a member formed separately from the upper frame and the lower frame. It is characterized by the following. Therefore, according to the fourth aspect of the present invention, since the support columns are formed separately from the upper frame and the lower frame, the rigidity between the upper frame and the lower frame is reduced, so that the upper frame and the lower frame are separated from each other. The constraint between them can be relaxed, and the same operation and effect as the first aspect can be obtained.

Further, the invention according to claim 5 provides an upper frame fixed to a beam or a column of a structure, and an upper frame disposed below the upper frame via a space and fixed to a beam or a column of the structure. A damper provided in a space formed between the upper frame and the lower frame, one end of which is connected to the upper frame, and the other end of which is connected to the lower frame; and And a wall plate attached so as to hold the lower frame from the front-back direction.

According to the fifth aspect of the present invention, the upper frame and the lower frame are held by the wall plate from the front-rear direction, and no support is provided between the upper frame and the lower frame. There is no restriction with the lower frame, and the same operation and effect as in claim 1 can be obtained.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a state in which an embodiment of a vibration damping wall panel according to the present invention is attached to a structure. As shown by a broken line in FIG. 1, the damping wall panel 10 is incorporated as a part of a wall of a structure such as a residential building to dampen vibration of the structure. The lower part of the damping wall panel 10 is fixed on a foundation 12 of a structure. The upper part of the damping wall panel 10 has the beams 1 mounted between the columns 13 and 14.
Fixed to 5.

As described above, the damping wall panel 10 is incorporated so that the four sides are accommodated in a rectangular space surrounded by the foundation 12 of the structure, the columns 13 and 14, and the girders 15. Therefore, when the vibration energy due to the earthquake propagates to the structure, the vibration is also applied to the damping wall panel 10 and the vibration energy that deforms the damping wall panel 10 into a parallelogram is propagated.

FIG. 2 is a front view showing the damping wall panel.
FIG. 3 is a longitudinal sectional view taken along line AA in FIG. FIG. 4 is a cross-sectional view taken along line BB in FIG. FIG. 5 is a cross-sectional view taken along line CC in FIG. FIG.
As shown in FIG. 5 to FIG. 5, the damping wall panel 10 has a structure without a rectangular frame, and each component is
2. Directly attached to girder 15 or the like.

The damping wall panel 10 includes an upper frame 23 and a lower frame 24.
And a pair of hydraulic dampers 21 and 22 are mounted in the space 16 between the upper frame 23 and the lower frame 24. And
A wall plate 11 (indicated by a dashed line in FIG. 1) that covers the upper frame 23, the lower frame 24, and the hydraulic dampers 21 and 22 is attached to the front and rear surfaces of the vibration damping wall panel 10. In addition, damping wall panel 1
Reference numeral 0 denotes an upper frame 23 fixed to the girder 15 via the stay 19, a lower frame 24 fixed to the base 18 via the wall base member 17, and a portion between the upper frame 23 and the lower frame 24. Side plates (posts) 25 and 26 that join the left and right sides and support the upper frame 23 at a predetermined height position are integrated. Each of the upper frame 23 and the lower frame 24 has a rectangular frame 27 and a V-shaped reinforcing portion 28 inside the frame 27. In addition, the frame 27 includes upper and lower beams 2.
7a and 27b and left and right columns 27c and 27d.

The frame 27 and the reinforcing portion 28
As shown in FIG. 4, the cross-sectional shape is formed, for example, in a C-shape, and has sufficient rigidity. Also, the side plates 25,
As shown in FIG. 5, the reference numeral 26 is formed in a thin plate shape, for example, so that it is easily deformed in shape in response to a force in the Xa and Xb directions, and in the Y direction perpendicular to the Xa and Xb directions. It has a structure that is not easily deformed by force.

Therefore, the side plates 25 and 26 are formed so as to have flexibility by a member having a cross-sectional structure having a lower rigidity than other portions of the vibration damping wall panel 10, and vibration having relatively small amplitude is inputted. Can be deformed. That is, the side plates 25 and 26 are connected to the upper frame 23 and the lower frame 2.
4 and, when a predetermined force or more is applied, deform to allow relative displacement between the upper frame 23 and the lower frame 24.

The side plates 25 and 26 are made of, for example, steel, synthetic resin, or the like, and are easily deformed in terms of material. Therefore, the side plates 25 and 26 are connected to the damping wall panel 10.
Are formed so as to have flexibility by a material having lower rigidity than other parts, the rigidity between the upper frame 23 and the lower frame 24 is small, and the constraint between the upper frame 23 and the lower frame 24 is relaxed. It has a configuration. As a result, relative displacement between the upper frame 23 and the lower frame 24 tends to occur, and the strokes of the hydraulic dampers 21 and 22 are secured, and a damping force is obtained.

In the pair of hydraulic dampers 21 and 22, the ends of the piston rods 21a and 22a are connected to the upper damper mounting stay 2.
9, and the ends of the cylinders 21b and 22b are rotatably connected to the lower damper mounting stay 30. The pair of hydraulic dampers 21 and 22 are arranged in a C-shape, and are provided in a state of being inclined in opposite directions. Therefore, one of the hydraulic dampers 21 and 22 performs a compression operation and the other performs an extension operation at the same time.

In the hydraulic dampers 21 and 22, the piston rods 21a and 22a extend and contract with respect to the cylinders 21b and 22b while changing the inclination angle according to the displacement direction of the upper frame 23 and the lower frame 24, respectively. To generate damping force. Thereby, the vibration energy input to the damping wall panel 10 is attenuated. For example, if the upper frame 23 is X
When displaced in the direction a, the left hydraulic damper 21 performs a compression operation, and the right hydraulic damper 22 performs an expansion operation. When the upper frame 23 is displaced in the Xb direction, the left hydraulic damper 21 performs an extension operation, and the right hydraulic damper 22 performs a compression operation.

The upper damper mounting stay 29 is fixed to the beam 27b of the upper frame 23 by, for example, a bolt and a nut (not shown), and the lower damper mounting stay 30 is fixed to the beam 27a of the lower frame 24 by, for example, a bolt. It is fixed by a nut (not shown). In the damping wall panel 10 configured as described above, the side plates 25 and 26 connecting the upper frame 23 and the lower frame 24 have more flexibility than other members of the damping wall panel 10. , Xa and Xb directions, the side plates 25 and 26 are deformed even if relatively small vibrations are propagated. Causes a relative displacement in which
The hydraulic dampers 21 and 22 can expand and contract to absorb vibration energy. Thus, in the vibration damping wall panel 10, a sufficient vibration damping effect can be obtained with the relative displacement between the upper frame 23 and the lower frame 24.

FIG. 6 is a front view for explaining the structure of the first modification of the present invention. FIG. 7 is a longitudinal sectional view taken along line AA in FIG. FIG. 8 is a cross-sectional view along the line BB in FIG. FIG. 9 is a cross-sectional view taken along line CC in FIG. 6 to 9, the same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 6 to 9, the damping wall panel 31 has an upper frame 23 and a lower frame 24 separated from each other, and a side plate 32 connecting the upper frame 23 and the lower frame 24 on both sides thereof. , 33 are attached. The side plates 32 and 33 are, for example, upper end 3
2a and 33a are fixed to side surfaces of the upper frame 23 by bolts 34, and lower ends 32b and 33b are fixed to the lower frame 24 by bolts 35.
It is fixed to the side and works as a support.

Since the side plates 32 and 33 are formed in a thin plate shape as shown in FIG. 9, Xa, Xb
The rigidity in the Xa and Xb directions is set to be small, and the shape is easily deformed by the force in the directions. Therefore, the side plates 32, 33
Has a flexibility that allows it to be deformed more easily in the vibration direction (Xa, Xb direction) than other portions of the damping wall panel 31 in shape, and is deformed even when vibration having a relatively small amplitude is input. be able to. That is, the side plates 32 and 33 restrain the space between the upper frame 23 and the lower frame 24 and deform when a force greater than a predetermined value is applied, so that the relative distance between the upper frame 23 and the lower frame 24 is increased. Allow displacement.

The side plates 32 and 33 are made of, for example, steel or synthetic resin, and are easily deformed in terms of material. Therefore, the side plates 32 and 33 are connected to the damping wall panel 31.
Is formed so as to have flexibility by a member having lower rigidity than other parts, the rigidity between the upper frame 23 and the lower frame 24 is small, and the restraint between the upper frame 23 and the lower frame 24 is relaxed. It has a configuration.

Therefore, even when relatively small vibrations are propagated, the vibration control wall panel 31 deforms the side plates 32 and 33 in the vibration direction (Xa and Xb directions) to cause a gap between the upper frame 23 and the lower frame 24. Can cause a relative displacement, which
The hydraulic dampers 21 and 22 can expand and contract to absorb vibration energy. As described above, in the damping wall panel 31, a sufficient damping effect can be obtained with the relative displacement between the upper frame 23 and the lower frame 24.

FIG. 10 is a front view for explaining the structure of the second modification of the present invention. FIG. 11 is a sectional view taken along a line AA in FIG.
It is a longitudinal cross-sectional view along a line. Further, FIG.
It is a cross-sectional view which follows the B line. In FIGS. 10 to 12, the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIGS. 10 to 12,
In the damping wall panel 41, the upper frame 23 and the lower frame 24 are separated. The upper frame 23 and the lower frame 24 are fixed by bolts 42 to the wall plate 11 attached to the front and rear surfaces, and are held by the wall plate 11.

For this reason, in the vibration damping wall panel 41, the columns and connecting members for restraining between the upper frame 23 and the lower frame 24 as described in the above embodiment are omitted, and the upper frame 23 and the lower frame are omitted. 24 has a flexible structure that is relatively easily displaced in the vibration direction (Xa, Xb directions). Therefore, the upper frame 23 and the lower frame 24 can be relatively displaced in the vibration directions (Xa, Xb directions) even when a vibration having a relatively small amplitude is input.

Therefore, the vibration damping wall panel 41 can cause relative displacement between the upper frame 23 and the lower frame 24 even when relatively small vibrations are propagated. 22 can expand and contract to absorb vibration energy. Thus, in the damping wall panel 41,
A sufficient vibration damping effect can be obtained with the relative displacement between the upper frame 23 and the lower frame 24.

FIG. 13 is a front view for explaining the structure of the third modification of the present invention. In FIG. 13, the same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
As shown in FIG. 13, the damping wall panel 51 has an upper frame 23 and a lower frame 24 separated from each other, and the upper frame 23 and the lower frame 24 are held by the wall plate 11 attached to the front and rear surfaces. .

Then, between the upper frame 23 and the lower frame 24,
Support members 52 and 53 on which the upper frame 23 is placed are interposed. The upper and lower ends of the support members 52 and 53 have an upper frame 23,
It is not connected to the lower frame 24, but is merely placed as a support for supporting the upper frame 23 at a predetermined height position. Therefore, the upper and lower ends of the support members 52 and 53 are slidably in contact with the upper frame 23 and the lower frame 24, and the upper frame 23 and the lower frame 24.
It is arranged not to restrain.

Therefore, in the vibration damping wall panel 51, since the support members 52 and 53 do not restrain the upper frame 23 and the lower frame 24 at all, the upper frame 23 and the lower frame 24
(a, Xb directions). Therefore, the upper frame 23 and the lower frame 24 have the vibration directions (Xa, Xa) even when a vibration having a relatively small amplitude is input.
b direction).

Accordingly, the vibration damping wall panel 51 can cause relative displacement between the upper frame 23 and the lower frame 24 even when relatively small vibrations are propagated. 22 can expand and contract to absorb vibration energy. Thus, in the damping wall panel 51,
A sufficient vibration damping effect can be obtained with the relative displacement between the upper frame 23 and the lower frame 24.

In the above-described embodiment, the configuration in which the damping wall panel is attached to the space formed by the columns, beams, etc. of the structure has been described as an example. However, the present invention is not limited to this, and vibrations are easily generated. Of course (for example, floor, ceiling, etc.). Further, in the above-described embodiment, the configuration in which the pair of hydraulic dampers 21 and 22 is disposed between the upper frame 23 and the lower frame 24 is described as an example. However, the present invention is not limited to this, and the number of hydraulic dampers is one or one. Of course, three or more may be used.

[0037]

As described above, according to the first aspect of the present invention, the damper is provided in the space formed between the upper frame and the lower frame, and the pillar having more flexibility than the other members is formed on the upper frame. Since it is provided between the lower frame and the lower frame, the rigidity between the upper frame and the lower frame is reduced, so that the constraint between the upper frame and the lower frame can be eased. Vibration energy can be absorbed by the damper generating a damping force according to the relative displacement between the frame and the lower frame. Therefore, even small vibrations can be effectively damped.

According to the second aspect of the present invention, since the support has a cross-sectional structure having a lower rigidity than other members and is formed so as to have flexibility, the rigidity between the upper frame and the lower frame is improved. Is reduced, so that the constraint between the upper frame and the lower frame can be eased, and the same operation and effect as those of the first aspect can be obtained. According to the third aspect of the present invention, since the support pillar is formed of a material having lower rigidity than other members and has flexibility, the rigidity between the upper frame and the lower frame is reduced, so that the upper frame is reduced. The constraint between the lower frame and the lower frame can be relaxed, and the same operation and effect as those of the first aspect can be obtained.

According to the fourth aspect of the present invention, since the support pillar is formed separately from the upper frame and the lower frame, the rigidity between the upper frame and the lower frame is reduced, and the upper frame and the lower frame are reduced. The constraint between the frame and the frame can be relaxed, and the same operation and effect as in the first aspect can be obtained. According to the fifth aspect of the present invention, the upper frame and the lower frame are held by the wall plate from the front-rear direction, and no support is provided between the upper frame and the lower frame. Therefore, the same operation and effect as those of the first aspect can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view showing a state in which an embodiment of a damping wall panel according to the present invention is attached to a structure.

FIG. 2 is a front view showing a damping wall panel.

FIG. 3 is a longitudinal sectional view taken along line AA in FIG.

FIG. 4 is a transverse sectional view taken along the line BB in FIG. 2;

FIG. 5 is a transverse sectional view taken along line CC in FIG. 2;

FIG. 6 is a front view for explaining the configuration of a first modification of the present invention.

FIG. 7 is a longitudinal sectional view taken along line AA in FIG.

FIG. 8 is a transverse sectional view taken along line BB in FIG.

FIG. 9 is a transverse sectional view taken along line CC in FIG. 6;

FIG. 10 is a front view for explaining the configuration of Modification 2 of the present invention.

11 is a longitudinal sectional view taken along line AA in FIG.

FIG. 12 is a transverse sectional view taken along the line BB in FIG. 10;

FIG. 13 is a front view for explaining the configuration of Modification 3 of the present invention.

[Explanation of symbols]

 10, 31, 41, 51 Damping control wall panel 11 Wall plate 12 Foundation 13, 14 Column 15 Large beam 16 Space 17 Wall base member 18 Base 19 Stay 21, 22 Hydraulic damper 23 Upper frame 24 Lower frame 25, 26, 32, 33 Side plate 27 Frame 28 Reinforcement part 29 Upper damper mounting stay 30 Lower damper mounting stay 52, 53 Support member

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Junji Hashimoto 1-6-3 Fujimi, Kawasaki-ku, Kawasaki-shi, Kanagawa F-term in Tokiko Corporation (reference) 2E002 EA02 EB12 EB13 FB14 FB15 FB16 FB23 HA02 JA01 JA03 JB14 JB16 JC02 JC03 JD01 JD02 MA12 2E125 AA03 AA13 AA29 AA48 AA53 AB08 AB10 AC14 AC21 AD01 AD04 BB03 BB08 BB11 BE07 BE08 BF01 CA03 CA05 CA14 CA19 EA25 3J048 AA02 AC04 BE03 DA02 EA38

Claims (5)

[Claims] An upper frame fixed to a beam or a column of a structure; a lower frame disposed below the upper frame via a space and fixed to a beam or a column of the structure; A damper provided in a space formed between the lower frame and the lower frame, one end connected to the upper frame, and the other end connected to the lower frame; provided between the upper frame and the lower frame; A supporting column having more flexibility than other members; and a damping wall panel. 2. The vibration-damping wall panel according to claim 1, wherein the support is formed by a member having a cross-sectional structure having a lower rigidity than other members. Damping wall panel. 3. The damping wall panel according to claim 1, wherein the support is formed of a material having lower rigidity than other members so as to have flexibility. 4. The vibration-damping wall panel according to claim 1, wherein the support comprises a member formed separately from the upper frame and the lower frame. 5. An upper frame fixed to a beam or a column of a structure, a lower frame disposed below the upper frame via a space and fixed to a beam or a column of the structure, and the upper frame A damper that is provided in a space formed between the lower frame and the lower frame, one end of which is connected to the upper frame and the other end of which is connected to the lower frame; and the upper frame and the lower frame are held in the front-rear direction. A damping wall panel, comprising: